
Alliance leadership sent Galen Erso's daughter, Jyn Erso, and Captain Cassian Andor to learn more about her father's involvement, and their subsequent efforts saw the Alliance discover more about the existence of the Death Star, as well as a fatal flaw in the design placed there by Galen Erso. Prior to the battle, Rebel Alliance Intelligence Service intercepted information suggesting that renowned scientist Galen Erso was building an Imperial superweapon capable of destroying entire planets. The first major battle of that war had been the Battle of Toprawa during that same year, where Red Hand Squadron had stolen a copy of the plans for the Death Star's superlaser in a similar way to how Rogue One would eventually steal the real Death Star Plans at Scarif. The battle was preceded by years of attacks by the fledgling Rebel Alliance against the Empire and began the five-year period in which the Alliance successfully fought to replace the Galactic Empire with the New Republic. The Battle of Scarif, also known as the action on Scarif, the mission to Scarif, or the raid on Scarif, was the second major battle fought in 0 BBY between the Alliance to Restore the Republic and the Galactic Empire during the First Galactic Civil War.



